Opera House is a 1961 Indian Hindi-language mystery film produced by A.A. Nadiadwala and directed by P.L.

Saroj (B. Saroja Devi) lives a poor lifestyle in Nagpur along with her widowed mother, Leela Sharma (Lalita Pawar) and a younger sister, Nanhi.

Circumstances compel her to re-locate to Nagpur and seek employment with another dance/drama company run by Chunilal.

It is from here he locates the dance/drama company and does meet Saroj — only to find out that she has changed her name to Mary D'Souza.

Ajit will eventually discover that Saroj had witnessed the murder of Chunilal and the killer(s) are now out to silence her — and whoever else dares to come in their way... Music in the film has been given by Chitragupta and Lyricist is Majrooh Sultanpuri.